Rotary Screw Air Compressors
Lubricated Rotary Screw Compressor 30 - 45 kW
CompAir Li30-45
The New Generation
Industries across the globe rely on CompAir rotary screw compressors for the supply of high quality compressed air. The CompAir Li series air compressor range incorporates the best of CompAir technology, design and quality. To deliver reliable, economical and efficient performance in a completely new package. The Li series delivers high quality air at volumes at a pressure range between 7 and 10 bar and is available in air cooled versions.
Maximum Durability
We maximise service life and durability by eliminating elastomer and thermoplastic pipe and tube in system pressure lines. Replacing them with corrosion resistant stainless steel tubing and passivated zinc coated carbon steel piping. For ease of maintenance we complete the connection with viton sealed grooved couplings and self sealing high pressure compression fittings.
Designed for Serviceability
Maintenance personnel love the Li series compressor range. Service access is quick and easy with all doors able to be removed in seconds. We’ve also made sure serviceable components including filters are easily accessible and no piping needs to be disconnected to service the separator.
📌 Overview: CompAir Li30-45 Lubricated Rotary Screw Air Compressors
This range refers to industrial-grade oil-lubricated rotary screw air compressors designed for continuous duty and reliable operation in manufacturing, workshops, automotive, and heavy-industry applications.
🛠 Key Features
Design & Technology:
The Li30-45 belongs to the CompAir L-Series of rotary screw compressors. These are lubricated (oil-injected) rotary screw compressors known for durability, high quality compressed air delivery and economical performance.
Power Range:
Motors from 30 kW up to 45 kW to suit medium and high-demand applications.
Pressure Capability:
Delivers compressed air typically in the 7 – 10 bar range, suitable for most industrial pneumatic systems.
Lubrication & Cooling:
Oil injection cools and seals the compression chamber, yielding efficient performance and improved rotor life.
Serviceability:
Designed for easy maintenance — filters and service points are accessible without disassembling piping.
Controller & Operation:
Often paired with advanced control systems (e.g., Delcos controllers) for monitoring and automated operation.
Variants Available:
Fixed-speed models for steady demand, regulated/variable speed (RS) models for energy savings, and premium efficiency “E” models.
📊 Typical Performance (Indicative)
Data varies by specific model and configuration, but representative figures for compressors in the 30 – 45 kW class include:
Model (kW) Typical Free Air Delivery (FAD) Pressure Noise Level
~30 kW ~5.75 m³/min up to 10 bar ~67 dB(A)
~37 kW ~5.11 m³/min up to 10 bar ~68 dB(A)
~45 kW ~4.36 – 8.67 m³/min up to 10 bar ~69 dB(A)
(Exact performance depends on model, speed control, and pressure setting.)
⚙️ Typical Use Cases
These compressors are widely used in:
Manufacturing & fabrication
Automotive assembly and paint shops
Food and beverage manufacturing
Pharmaceutical processing
General industrial pneumatic systems
The oil-injected rotary screw design ensures steady output and low maintenance compared with piston compressors.
